Check Engine Light and/or Engine Overheating on BMW 323i

Problem Description and Possible Solution

The thermostat may fail resulting in engine overheating and/or illumination of the Check Engine Light. Replacement of the thermostat along with a complete inspection of the cooling system will be necessary to correct this concern.

Overheating can cause severe engine damage. If the engine begins to overheat it is recommended to stop at the first available location and have your vehicle towed to a repair shop.

Problem Data
RepairPal Verified
Average mileage: 113,847 (75,000–188,000)
2 model years affected: 1998, 2000
11 people reported this problem
Viewing 1 - 3 of 3 comments
I just recently had to have this fixed on my 2000 323i, replacement of the thermostst, lower radiator hose, lower reserve cooling tank, water pump, and other related items. $784.00
thermostat and radiator hose bAD
My coolant level light came on .Then it ran hot coolant came out of the coolant tank top. Refilled drove for maybe 2miles temp went up again